In summary
- Realme is set to unveil a smartphone prototype featuring a massive 15000mAh battery.
- The unveiling event is scheduled for August 27.
- However, the likelihood of a commercial product hitting the market soon is uncertain.
Realme is gearing up to showcase a smartphone prototype that boasts an impressive 15000mAh battery capacity.
This Chinese brand has been hinting at a smartphone with a larger-than-usual battery size, which will be revealed at a special Realme 828 Fan event taking place tomorrow.
While it was initially known that the battery would exceed 10,000mAh, a recent X post has unveiled the astonishing capacity of 15,000mAh. A close inspection of the phone’s rear cover in the image reveals this remarkable number.
Undoubtedly, this capacity is extraordinary for a modern smartphone. For comparison, the Samsung Galaxy S25 Ultra, one of the top smartphones on the market, features a 5,000mAh battery. In contrast, this Realme prototype houses a cell with three times the capacity.
How realistic is a 15,000mAh battery?
While we have seen advancements in battery technology, such as silicon-carbon batteries, leading to larger battery sizes in 2025, a battery of this magnitude is unprecedented. For instance, the Xiaomi 16 is rumored to have a 7,000mAh battery, and the Nubia Redmagic 10 Pro features a 7,050mAh cell, which is still less than half of what Realme’s experimental phone offers.
Realme claims that this massive battery will provide up to 50 hours of continuous streaming, a remarkable achievement.
Realme
It remains to be seen if such a high-capacity battery will make its way into a commercial product anytime soon. It’s worth noting that back in 2018, phones typically had 3,000mAh batteries. The shift to larger batteries began with the Samsung Galaxy S20 Ultra in 2020, sporting a 5,000mAh battery, which was considered substantial at the time.
Over the next year, we are more likely to see phones reaching the 7,000mAh mark, a significant improvement over the 5,000mAh standard.
Moreover, a significantly larger battery like this will require longer charging times, so it is essential for Realme to incorporate a fast-charging solution. In 2023, the Realme GT Neo 5 and Realme GT 3 introduced 240W charging, so perhaps Realme will bring back this impressive feature.
This article discusses Realme’s upcoming smartphone prototype featuring an impressive 15000mAh battery. The post delves into the feasibility of such a high-capacity battery and the potential impact on the smartphone market. Realme’s innovative approach to battery technology is highlighted, along with the challenges and possibilities it presents for consumers.